The actress stated that there are no plans for Sophie's budding friendship with Ryan Connor (Sol Heras) to become a romance, as coming out as gay has "made so much of an impact" on the character.
"I don't want to be straight," Vincent told The Sun. "I don't think the producers want her to be straight either.
"Being a lesbian has made so much of an impact on her, and it's not a phase for most people.
"So it's all right saying, 'Oh well, it's all right for storylines', but they can't exactly make her not gay again - that doesn't work."
Previous reports that Sophie will reconsider her sexuality were denied by the Coronation Street team back in March.
It has been rumoured that Sophie will become addicted to drugs as a result of her relationship with Ryan in a new plotline.